340 | Layer 2
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Defaults
The default behavior is dynamic.
“Static” means manually entered addresses, which do not age.
Command Modes
INTERFACE
Command
History
Usage
Information
This command and its options are supported on physical interfaces, static LAGs, LACP LAGs, and
VLANs.
If the vlan option is not specified, the MAC address counters is not VLAN-based. That is, the sum of
the addresses learned on all VLANs (not having any learning limit configuration) is counted against
the MAC learning limit.
MAC learning limit violation logs and actions are not available on a per-VLAN basis.
With the no-station-move option, MAC addresses learned through this feature on the selected interface
persist on a per-VLAN basis, even if received on another interface. Enabling or disabling this option
has no effect on already learned MAC addresses.
After the MAC address learning limit is reached, the MAC addresses do not age out unless you add the
dynamic option. To clear statistics on MAC address learning, use the clear counters command with the
learning-limit parameter.
When a channel member is added to a port-channel and there is not enough ACL CAM space, the
MAC limit functionality on that port-channel is undefined. When this occurs, un-configure the existing
configuration first and then reapply the limit with a lower value.
Related
Commands
no-station-move (OPTIONAL) Enter the keyword no-station-move to disallow a station
move (associate the learned MAC address with the most recently accessed
port) on learned MAC addresses.
station-move (OPTIONAL) Enter the keyword station-move to allow a station move on
learned MAC addresses.
sticky
(OPTIONAL) Enter the keyword sticky to allow configuring the sticky mac
feature along with the learning limit.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
clear counters
Clears counters used in the
show interface command
clear mac-address-table
dynamic
Clears the MAC address table of all MAC address learned dynamically.
show mac learning-limit Displays MAC learning-limit configuration.
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